Casing for a pyrotechnic training unit



FIG. 1 is a top perspective view of a casing of a pyrotechnic training unit wherein a firing block and a base are being shown in phantom as environmental structure;

FIG. 2 is a front elevational view of the casing shown in FIG. 1, without any environmental structure;

FIG. 3 is a rear elevational view of the casing shown in FIG. 1, without any environmental structure;

FIG. 4 is a left side elevational view of the casing shown in FIG. 1, without any environmental structure;

FIG. 5 is a right side elevational view of the casing shown in FIG. 1, without any environmental structure;

FIG. 6 is a top plan view of the casing shown in FIG. 1, without any environmental structure; and,

FIG. 7 is a bottom plan view of the casing shown in FIG. 1, without any environmental structure.

The broken line showing of portions of the pyrotechnic training unit is included for the purpose of illustrating environment and forms no part of the claimed design. 

The ornamental design for a casing for a pyrotechnic training unit, as shown. 